1.Effects of anti-tumor drugs on myeloid-derived suppressor cells
Journal of International Oncology 2013;40(9):655-658
Myeloid-derived suppressor cells (MDSCs) play an important immunosuppressive role during the tumor development process.And the progression of many tumors are always accompanied with abnormal accumulation of MDSCs.Moreover,both the accumulation and functions of MDSCs could be affected by complicated factors.Therefore,how to effectively reduce the immunosuppressive effects of MDSCs in oncotherapy has become the focus of scholars.Recent studies show that anti-tumor drugs can affect many biological behaviors of MDSCs.
2.Ethical Suggestions for Fetal Echocardiography Examination and Counseling Service
Yutong LIANG ; Tian ZHOU ; Zhen WANG
Chinese Medical Ethics 2015;(3):335-337
The application of fetal echocardiography in clinical is increasing , more and more patients need de-tailed consulting services .The following suggestions are made:Echocardiographic doctors should set up the consulting service consciousness , provide consulting with patience , popularity and carefulness; the doctors should understand the patients and their family′s emotions and also pay attention to the psychological care;environmental requirements for patients′echocardiographic examination and counseling service;encouraging multidisciplinary join the participa-tion of consulting services .
4.Knockdown of survivin expression by siRNA induces apoptosis of hepatocellular carcinoma cells.
Liang, WU ; Ying, WANG ; Deying, TIAN
Journal of Huazhong University of Science and Technology (Medical Sciences) 2007;27(4):403-6
Survivin, a newly identified member of IAP family, is a powerful apoptosis-inhibiting factor. It is expressed in embryonic tissues as well as in the majority of human cancers, but not in most normal adult tissues. The cancer-specific expression of survivin makes it a potential target for cancer treatment. A survivin-specific small inhibitory RNA (siRNA) was introduced into hepatocellular carcinoma cells to investigate its effect on cancer cell apoptosis, growth and sensitivity to chemotherapeutic drugs. It was found that expressions of survivin protein and proliferation index (PI) in siRNA groups were significantly decreased, the apoptosis index (AI) of siRNA groups was significantly higher than those of others groups, and the growth inhibition rate (GIR) of chemotherapeutic drugs in siRNA groups were significantly higher than those of other groups. Our study suggests that the expression of survivin may be significantly decreased in hepG2 cell after siRNA transfection. siRNA targeting survivin could induce cell apoptosis, inhibit cell proliferation and sensitize hepatocarcinoma cells to chemotherapy. Our findings provide preliminary evidence for the therapeutic use of survivin-targeted RNA interference for human tumors that express high levels of this molecule.
Apoptosis
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Cell Proliferation
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Gene Knockdown Techniques
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Hep G2 Cells
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Microtubule-Associated Proteins/*genetics
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Microtubule-Associated Proteins/metabolism
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RNA Interference
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RNA, Messenger/genetics
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RNA, Messenger/metabolism
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RNA, Small Interfering/*genetics
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RNA, Small Interfering/metabolism
5.Analysis on the clinicopathology characteristics of anaplastic large cell lymphoma
Gangping WANG ; Shenghua TIAN ; Fenhua LIANG
Journal of Leukemia & Lymphoma 2009;18(3):158-159,162
Objective To investigate the clinicopathology characteristics, immunopheotypic of anaplastic large cell lymphoma (ALCL) in order to improve its diagnostic and therapeutic accuracy. Methods The clinical, immunophenotypic and histopathologie features of 19 cases ALCL were retrospectively studied. The expression of CD30, ALK, CD43, CD45RO, EMA and TIA-1 was detected using EnVision immunohistochemical technique. Results All patients were primary systemic ALCL. Among the 19 patients, 11 were males and 8were females. The age ranged from 2 to 71 years, average age 26 years old. It shows a broad morphologic spectrum of the tumor cell and the hallmark cells characterized by sheets of large lymphoid cells withchromatin-poor horseshoe-shaped nuclei containing multiple nucleoli were encountered in all ALCL variants. 16patients (84.2 %) showed B-symptoms, and extranodal involvement was present in 14 (73.7 % ).Immunohistochemical study showed that the tumor cells expressed CD30 (100 %), ALK (78.9 %), EMA(52.6 %), TIA-1 (73.7 %) and 2 cases (10.5 %) neither expressed ALK, nor EMA,TIA-1.17 cases were reached the correct diagnosis according to combination of clinic, histological and immunological features.Conclusion The correct diagnosis of ALCL may be reached by combination of clinic, histological and immunological features according to WHO classification. Immunohistoehemical staining for CD30, ALK, EMA and TIA-1 is useful in making a correct diagnosis.
6.Therapeutic Effect of Shenluo'an Decoction for Obese Patients with Early Diabetic Nephropathy and Its Anti-inflammation Mechanism
Liming TIAN ; Xing WANG ; Yujie HAO ; Guiying WANG ; Zhenfeng LIANG
Journal of Guangzhou University of Traditional Chinese Medicine 2017;34(2):158-163
Objective To observe the therapeutic effect of Shenluo'an Decoction(SD) for the treatment of obese patients with early diabetic nephropathy and to explore the possible mechanism.Methods A total of 68 obese patients with early diabetic nephropathy were randomly assigned into control group and treatment group,34 cases in each group.Both groups were given conventional western medicine treatment including lifestyle regulation,dietary control,and medicine for lowering blood pressure,blood glucose and blood lipids.Additionally,the control group was given oral use of Irbesartan,and the treatment group was given oral use of SD combined with Irbesartan.Before and after treatment,we observed the traditional Chinese medical syndrome scores,body mass index(BMI),blood levels of cystatin C (Cys C),β2-microglobumin(β2-MG),homocysteine (Hcy) and fasting blood glucose (FBG),and urine parameters of urinary monocyte chemoattractant protein-1 / urinary creatinine (UMCP-1/UCR),urinary factor of regulated on activation in normal T cell expressed and secreted / urinary creatinine (URANTES/UCR),urinary albumin-to-creatinine ratio (UACR) and urinary albumin excretion ratio (UAER) before treatment and after treatment for 16 weeks.After treatment,the clinical efficacy and safety were also evaluated.Results (1) During the treatment,5 cases were dropped out,and a total of 63 cases (32 from the treatment group and 31 from the control group) completed the experiment.(2) The total effective rate of the treatment group(90.6%) was significantly higher than that of the control group(67.7%),the difference being significant(P < 0.05).(3)BMI of the two groups after treatment was significantly lower than that before treatment (P < 0.05).(4) After treatment,the traditional Chinese medical syndrome scores,blood parameters (Cys C,β2-MG,Hcy,FBG) and urine parameters (UMCP-1/UCR,URANTES/UCR,UACR,UAER) in the treatment group were decreased as compared with those before treatment and those in the control group after treatment(P <0.05).(5) A positive correlation was present among the parameters of UMCP-1/UCR,URANTES/UCR,UACR and UAER.(6) No abnormal changes took place in the blood and stool routine examination,hepatic function,or electrocardiography of the 63 cases.Conclusion SD combined with western medicine exerts certain therapeutic effect for obese patients with early diabetic nephropathy,and is effective on relieving clinical symptoms anddecreasing BMI,Cys C,β2-MG,UACR,UAER,UMCP-1 and URANTES.Its mechanism is probably related with the inhibition of chronic renal inflammation.
7.Clinical comparative study of vinorelbine and docetaxel separately combined with lobaplatin in treatment of recurrent and metastatic breast cancer
Liang YAO ; Wanfu WANG ; Fuguo TIAN ; Jun YANG
Chinese Journal of Primary Medicine and Pharmacy 2016;23(16):2421-2424
Objective To investigate clinical effect and safety difference of vinorelbine and docetaxel sepa-rately combined with lobaplatin in treatment of recurrent and metastatic breast cancer.Methods 160 patients with recurrent and metastatic breast cancer were chosen from July 2009 to July 2012 in our hospital,and they were random-ly divided into two groups,including A group (80 patients)with vinorelbine and B group (80 patients)with docetaxel on the basis of lobaplatin.The clinical efficacy for short -term,survival rate with follow -up and side effects incidence of both groups were compared.Results The RR and DCR of A group were 51.25%,68.75%,which of B group were 55.00%,71.25%.There was no significant difference in the clinical efficacy for short -term between the two groups (χ2 =1.04,2.37,all P >0.05).The survival rates in 1,2 and 3 years after treatment of A group were 60.00%,53.75%,28.75%,those of B group were 67.50%,57.50%,31.25%.There was no significant difference in the survival rate with follow -up between the two groups (χ2 =2.14,3.01,1.87,all P >0.05).The incidence rate of drug side effects of B group was significantly lower than A group(χ2 =13.14,9.33,15.74,11.65,8.29,all P <0.05).Conclusion Vinorelbine and docetaxel separately combined with lobaplatin in treatment of recurrent and metastatic breast cancer can efficiently control the disease progress and prolong the survival time;but docetaxel com-bined with lobaplatin treatment is helpful to reduce the risk of serious side effects.
8.Comparison of non-steroidal anti-inflammatory drugs after posterior lumbar fusion surgery
Shuaihao HUANG ; Qiujian ZHENG ; Yisheng WANG ; Changxiang LIANG ; Mengmeng TIAN
The Journal of Practical Medicine 2014;(20):3321-3323
Objective To compare the analgesia effect and the safety of Flurbiprofen Axetil (FA) and Parecoxib Sodium (PS) after posterior lumbar fusion surgery. Methods 90 patients undergoing internal fixation of lumbar spine randomly assigned to 3 groups:those in Group A(n = 30) received 100 mg of FA; those in Group B (n=30) received 40 mg of PS and those in Group C received saline.The VAS scores of 2, 6, 12, 24, 48, 72 h after operation and the dose of tramadol hydrochloride (TH) used and the side effect was recorded respectively. Results Group A and B had significantly better analgesic effect than Group C(P<0.05). Group A and B had lower average dose of TH than Group C (P<0.05). The VAS scores in Group A was lower than that in Group B in 2 h after the surgery. The VAS scores after the surgery showed no significant difference between Group A and B in 6 , 12, 24 h after the surgery. The VAS scores in Group A was higer than that in Group B in 48,72 h after the surgery. Conclusion Both PS and FA can alleviate postoperative pain and have fewer adverse reactions.
9.Effects of ?-catenin-dependent LEF-1 isoforms on the biological behavior of HeLa cells
Shuhong WANG ; Kejun NAN ; Tao TIAN ; Xuan LIANG
Journal of Xi'an Jiaotong University(Medical Sciences) 1981;0(03):-
Objective To study the effects of ?-catenin-dependent lymphoid enhancer factor(LEF-1) isoforms on biological behavior of HeLa cells.Methods ?-catenin-dependent LEF-1 genes were obtained by PCR from human lymphoid node cDNA library and inserted into pcDNA3.1/V5-His vector to construct the eukaryotic expression plasmid pcDNA3.1-F-LEF-1.Using lipofectamineTM 2000,the plasmid pcDNA3.1-F-LEF-1 was transfected into Hela cells.Then we screened the stable cell lines that expressed the truncated LEF-1 isoforms by G418 and identified the expression of target gene with Western blot.Then we analyzed the proliferation,apoptosis,cell clone formation and capability of tumor formation in vivo of transfected cell lines.Results We successfully constructed the ?-catenin-dependent LEF-1 eukaryotic expression plasmid and obtained the stable HeLa cell lines that expressed the full-length LEF-1 isoforms.The proliferation and capability of tumor formation in vivo of transfected cells were increased while apoptosis was decreased.Conclusion The overexpression of ?-catenin-dependent isoforms can stimulate the malignant biological behavior of HeLa cells.
10.Update of studies about prepulse inhibition in psychiatric disorders
Ming LEI ; Qing TIAN ; Chuanyue WANG ; Liang LI
Chinese Journal of Behavioral Medicine and Brain Science 2017;26(2):188-192
Prepulse inhibition ( PPI) is the suppression of the startle reflex when the startling stim-ulus is preceded by a non-startling stimulus ( the prepulse) . It is an operational measurement of sensorimotor gating mechanism to help the brain adapt to the complex environment,which could be top-down modulated by attention and other higher cognitive processes. Deficits of PPI and the top-down modulation of PPI are closely related to psychiatric diseases. Research papers published from January 2001 to October 2016 related to PPI in psychiatric disorders were searched in the Chinese and English databases. Results showed that schizo-phrenic patients and their relatives showed deficits in baseline PPI as well as the attentional modulation of PPI,and more importantly,the attentional modulation of PPI rather than the baseline PPI was more related to the symptom severity. Patients with Tourette'' s syndrome showed PPI impairment,while patients with obsess-ive compulsive disorder had lower levels of PPI. PPI deficits in bipolar disorder patients were gender-depend-ent. Studying PPI and the top-down modulation of PPI could provide a basis to study the interaction of senso-ry processing and attention,and facilitate the researches of neural mechanism underlying the deficits of senso-ry gating. To establish advanced paradigms of PPI,new cognitive components could be introduced,such as at-tention,emotion,motor control,compulsivity and so on,thus improving the specificity of PPI test and promo-ting the PPI test as new biomarker and endophenotype in various psychiatric disorders.